About: http://webisa.webdatacommons.org/320234797

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Typically, the foam is a layer of elastomeric (typically polyurethane) foam in the range of about --0.05 to about 0.2 inches thick and have a density in the range of about 60 pounds per cubic foot.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com